| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎0 m- h# T0 [# _/ u: L7 ^

; J: u- l6 R8 x  t& z$ m$ R(x - a) = x - a
; v: Q' c8 ^, T% U0 u0 C4 ?- ~- i(x - a) (x - b) = x^2 – ax – bx + ab. p' O/ e& |0 g- h. ~/ d* |8 d* I. `; r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc0 \, _. o% x, e1 `" @3 S
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd- g2 t! @0 w4 o  ^
如此種推，
3 O7 I/ j8 H3 z. D: T, |' {1 c(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題
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Originally posted by Triangel at 2007-4-18 01:26 PM:
  n" C; p8 p1 K3 y3 z' V(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
+ c+ y5 r' S& O! z; M+ B
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:
# o8 S* t0 v* [+ ~8 V咁難既=.="
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1 Z; U6 M  m- g9 f$ H8 @& L[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ K1 Z8 ^, g! ?6 `# h6 g/ G第一個答中有獎, m& t3 N; [0 t. v" N6 d
# S# L& G7 _6 B
(x - ...

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) H6 M9 f1 l" [) o(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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9 Q4 d! N0 F( P7 Z(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
1 I) ~& N% m  k似IQ題=.=
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, H4 ~# Y8 `7 D" x& z& M) u[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:4 t( D) _  e7 P) g# m
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(x-x)= 0 ，所以答案係0，is it?

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8 `# ^1 y- K/ Y, gBingo~

waikong

我係學校個學生會單張見過
: X- s8 j, C3 k4 W4 j9 H- [0 Z0 D諗左一陣先諗到

playbr2

我吾識答啊http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif~~~ http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif

karen0123

(哭)~~~~~其實我都知係0.........8 f# `: \& b+ ?
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這條問題，貼落吹水版，名副其實  u: z5 j% h, w8 u; f9 W) f
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[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]